Granted Patent
Utility
US 6,048,635 · App. 09/139,314
Polymeric header for fuel cell pressure plate assemblies
Inventor:
Robin J. Guthrie
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Aug 25, 1998
Inventor
Robin J. Guthrie
Assignee (at issue)
International Fuel Cells, LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.